Open AccessStudy on the Shut-in Time Law after Volume Fracturing of Glutenite Reservoir——Taking the Horizontal Well of Mahu 1 Well Area as an Example
Author(s) -
Wu Xin,
Mengyang Zhao,
Xudong Luo,
ZhiWei Sun,
Shao-Hui Zheng,
Yi Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/512/1/012055
Subject(s) - geology , shut down , pressure drop , infiltration (hvac) , volume (thermodynamics) , geotechnical engineering , petroleum engineering , engineering , mechanics , materials science , physics , quantum mechanics , nuclear engineering , composite material
Two horizontal wells have been put into operation in the Mahu 1 well area, the difference in geology and engineering between Mahu 1 well area and Ma 18 and Ma 131 well area is small, but the pressure and output drop rapidly after putting into production. Aiming at this problem, the micro-mechanism analysis is carried out, through the analogy with the neighboring area, and the reasonable shut in time is calculated through the derivation of theoretical infiltration rate formula. The results show that the reasonable closing time after horizontal well fracturing in the Mahu 1 well area is 18 days. Through the analysis of the mine test, the infiltration method and pressure drop method can accurately predict the reasonable shut-in time after fracturing, the research results have played a good guiding role in the production of horizontal well volume fracturing.